From patchwork Thu Dec 10 06:22:35 2009 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Santosh Shilimkar X-Patchwork-Id: 66177 X-Patchwork-Delegate: tony@atomide.com Received: from vger.kernel.org (vger.kernel.org [209.132.176.167]) by demeter.kernel.org (8.14.2/8.14.2) with ESMTP id nBA6N5VI017980 for ; Thu, 10 Dec 2009 06:23:05 GMT Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S933270AbZLJGW4 (ORCPT ); Thu, 10 Dec 2009 01:22:56 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S933162AbZLJGWz (ORCPT ); Thu, 10 Dec 2009 01:22:55 -0500 Received: from arroyo.ext.ti.com ([192.94.94.40]:57975 "EHLO arroyo.ext.ti.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932840AbZLJGWy (ORCPT ); Thu, 10 Dec 2009 01:22:54 -0500 Received: from dbdp31.itg.ti.com ([172.24.170.98]) by arroyo.ext.ti.com (8.13.7/8.13.7) with ESMTP id nBA6Mg2K009595 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Thu, 10 Dec 2009 00:22:44 -0600 Received: from linfarm476.india.ti.com (localhost [127.0.0.1]) by dbdp31.itg.ti.com (8.13.8/8.13.8) with ESMTP id nBA6MbpX014023; Thu, 10 Dec 2009 11:52:38 +0530 (IST) Received: from linfarm476.india.ti.com (localhost [127.0.0.1]) by linfarm476.india.ti.com (8.12.11/8.12.11) with ESMTP id nBA6MbWE001870; Thu, 10 Dec 2009 11:52:37 +0530 Received: (from a0393909@localhost) by linfarm476.india.ti.com (8.12.11/8.12.11/Submit) id nBA6MafP001868; Thu, 10 Dec 2009 11:52:36 +0530 From: Santosh Shilimkar To: tony@atomide.com Cc: linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, linux@arm.linux.org.uk, Santosh Shilimkar Subject: [PATCH 1/6 v2] OMAP4: Fix cpu detection Date: Thu, 10 Dec 2009 11:52:35 +0530 Message-Id: <1260426156-1820-1-git-send-email-santosh.shilimkar@ti.com> X-Mailer: git-send-email 1.5.5 Sender: linux-omap-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-omap@vger.kernel.org diff --git a/arch/arm/mach-omap2/id.c b/arch/arm/mach-omap2/id.c index f48a4b2..3641ba0 100644 --- a/arch/arm/mach-omap2/id.c +++ b/arch/arm/mach-omap2/id.c @@ -246,6 +246,31 @@ void __init omap3_check_revision(void) } } +void __init omap4_check_revision(void) +{ + u32 idcode; + u16 hawkeye; + u8 rev; + char *rev_name = "ES1.0"; + + /* + * The IC rev detection is done with hawkeye and rev. + * Note that rev does not map directly to defined processor + * revision numbers as ES1.0 uses value 0. + */ + idcode = read_tap_reg(OMAP_TAP_IDCODE); + hawkeye = (idcode >> 12) & 0xffff; + rev = (idcode >> 28) & 0xff; + + if ((hawkeye == 0xb852) && (rev == 0x0)) { + omap_revision = OMAP4430_REV_ES1_0; + pr_info("OMAP%04x %s\n", omap_rev() >> 16, rev_name); + return; + } + + pr_err("Unknown OMAP4 CPU id\n"); +} + #define OMAP3_SHOW_FEATURE(feat) \ if (omap3_has_ ##feat()) \ printk(#feat" "); @@ -336,7 +361,7 @@ void __init omap2_check_revision(void) omap3_check_features(); omap3_cpuinfo(); } else if (cpu_is_omap44xx()) { - printk(KERN_INFO "FIXME: CPU revision = OMAP4430\n"); + omap4_check_revision(); return; } else { pr_err("OMAP revision unknown, please fix!\n"); diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c index cc050b3..3473a80 100644 --- a/arch/arm/plat-omap/common.c +++ b/arch/arm/plat-omap/common.c @@ -280,7 +280,7 @@ void __init omap2_set_globals_343x(void) #if defined(CONFIG_ARCH_OMAP4) static struct omap_globals omap4_globals = { .class = OMAP443X_CLASS, - .tap = OMAP2_L4_IO_ADDRESS(0x4830a000), + .tap = OMAP2_L4_IO_ADDRESS(OMAP443X_SCM_BASE), .ctrl = OMAP2_L4_IO_ADDRESS(OMAP443X_CTRL_BASE), .prm = OMAP2_L4_IO_ADDRESS(OMAP4430_PRM_BASE), .cm = OMAP2_L4_IO_ADDRESS(OMAP4430_CM_BASE), diff --git a/arch/arm/plat-omap/include/plat/cpu.h b/arch/arm/plat-omap/include/plat/cpu.h index 2e17890..9359785 100644 --- a/arch/arm/plat-omap/include/plat/cpu.h +++ b/arch/arm/plat-omap/include/plat/cpu.h @@ -176,11 +176,13 @@ IS_OMAP_CLASS(15xx, 0x15) IS_OMAP_CLASS(16xx, 0x16) IS_OMAP_CLASS(24xx, 0x24) IS_OMAP_CLASS(34xx, 0x34) +IS_OMAP_CLASS(44xx, 0x44) IS_OMAP_SUBCLASS(242x, 0x242) IS_OMAP_SUBCLASS(243x, 0x243) IS_OMAP_SUBCLASS(343x, 0x343) IS_OMAP_SUBCLASS(363x, 0x363) +IS_OMAP_SUBCLASS(443x, 0x443) #define cpu_is_omap7xx() 0 #define cpu_is_omap15xx() 0 @@ -408,8 +410,8 @@ IS_OMAP_TYPE(3517, 0x3517) # if defined(CONFIG_ARCH_OMAP4) # undef cpu_is_omap44xx # undef cpu_is_omap443x -# define cpu_is_omap44xx() 1 -# define cpu_is_omap443x() 1 +# define cpu_is_omap44xx() is_omap44xx() +# define cpu_is_omap443x() is_omap443x() # endif /* Macros to detect if we have OMAP1 or OMAP2 */ @@ -443,7 +445,8 @@ IS_OMAP_TYPE(3517, 0x3517) #define OMAP3505_REV(v) (OMAP35XX_CLASS | (0x3505 << 16) | (v << 12)) #define OMAP3517_REV(v) (OMAP35XX_CLASS | (0x3517 << 16) | (v << 12)) -#define OMAP443X_CLASS 0x44300034 +#define OMAP443X_CLASS 0x44300044 +#define OMAP4430_REV_ES1_0 0x44300044 /* * omap_chip bits